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Effect of field-dependent mobility on current density and dynamics of space charge in polyethylene

Effect of field-dependent mobility on current density and dynamics of space charge in polyethylene
Effect of field-dependent mobility on current density and dynamics of space charge in polyethylene
Transient space charge within polyethylene has been simulated based on a bipolar charge transport model with a constant mobility. Initial results are in good agreement with those previously reported. To further develop the model, two types of field-dependent carrier mobility: Power-Law mobility and Poole-Frenkel mobility are considered in the charge transport process. Various space charge profiles and the current densities under different dc voltages have been achieved by using the simulation. The resulting current density vs. the applied electric field under different mobility models has been discussed. The results show that Power-Law mobility is a good alternative for simulating field-dependent charge behavior even though Poole-Frenkel mobility presents stronger field-dependent characteristics.
978-1-4244-4559-2
CD-ROM
Zhao, J
ccf4084e-9736-4a9a-8a46-92a83257bca7
Xu, Z
797f8b0e-a035-4cf9-ac3f-99098a3fdb50
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Zhao, J
ccf4084e-9736-4a9a-8a46-92a83257bca7
Xu, Z
797f8b0e-a035-4cf9-ac3f-99098a3fdb50
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

Zhao, J, Xu, Z, Chen, G and Lewin, P L (2009) Effect of field-dependent mobility on current density and dynamics of space charge in polyethylene. At 2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena 2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena, United States. 18 - 21 Oct 2009. CD-ROM.

Record type: Conference or Workshop Item (Paper)

Abstract

Transient space charge within polyethylene has been simulated based on a bipolar charge transport model with a constant mobility. Initial results are in good agreement with those previously reported. To further develop the model, two types of field-dependent carrier mobility: Power-Law mobility and Poole-Frenkel mobility are considered in the charge transport process. Various space charge profiles and the current densities under different dc voltages have been achieved by using the simulation. The resulting current density vs. the applied electric field under different mobility models has been discussed. The results show that Power-Law mobility is a good alternative for simulating field-dependent charge behavior even though Poole-Frenkel mobility presents stronger field-dependent characteristics.

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Published date: 18 October 2009
Additional Information: Event Dates: 18-21 October 2009
Venue - Dates: 2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena, United States, 2009-10-18 - 2009-10-21
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 268126
URI: https://eprints.soton.ac.uk/id/eprint/268126
ISBN: 978-1-4244-4559-2
PURE UUID: 3c53f248-e25f-4121-94fb-149904b15ab3

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Date deposited: 26 Oct 2009 23:44
Last modified: 18 Jul 2017 06:56

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